I'm wondering if Storify pages are dynamically generated, recreating the page by pulling in all of the individual items that make it up (essentially a series of disparate, individual RSS feeds, one for each item). Or they may well be combined and captured into one page with a single URL.

I'm expecting that, if it's the former, then deleting this tweet from Twitter will remove it (after some unknown period of time) from Storify. If it remains here in perpetuity then the second theory seems plausible - mind you there could well be some other reason that I've not thought of.

Science Information Officer, Diabetes UK & Public Engagement Co-ordinator, UCLIC, UCL. Views are my own etc. etc. :) Proof of principle more than anything really... OK Storify looks like a lot of fun. I need to have an excuse to make a story with it though ;-) http://storify.com I am wondering how feasible use of this tool might be as a means of collecting tweets, given that What The Hashtag has ceased to be, and that Twitter has changed its Terms of Service to make it harder for people ...

Edit: 17:20 2 May 2011 - the tweet's still here on Storify which doesn't surprise as much as the updating timestamp. At the time of writing it says that it was posted to Twitter 21 hours ago (true) and when I deleted it earlier today it said 19 hours ago (also true, at the time). I'm a bit surprised that an absent tweet is still being counted, unless it simply recalculates from the known time at which the tweet was posted.

Edit: 08.33 27 March 2014 - three years on and the tweet's still there, with a correct timestamp (it's not the typical granular X o'clock on Thursday the umpteenth of May 2011 that you'd expect from a still-alive tweet, but I'm impressed that it knows when it was sent, even though it's no longer there).